public class 课后作业3 {
    public static void main(String[] args) {
       int a = 7/2;
        System.out.println(a);

        int b = 10%3;
        System.out.println(b);

        double c = 5/2;
        System.out.println(c);

        int x = 12/3;
        System.out.println(x);

        int y = 17%5;
        System.out.println(y);

        int num1 = 78;
        String level = num1 >= 60 ? "通过" : "补考";
        System.out.println(level);

        int num2 = 85;
        String grade = num2  >= 60 ? "合格" : "不合格";
        grade = num2 >= 90 ? "优秀" : grade;
        System.out.println(grade);

    }
}
